Home / 57,223.18-78,960-33,331.42

Finding the Fourth Proportional to 57,223.18, 78,960 and 33,331.42

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Solution

The fourth proportional to 57,223.18, 78,960 and 33,331.42 is: 45,992.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,223.18 : 78,960 = 33,331.42 : x
  2. Step 2: Convert to fraction form
    57,223.18/78,960 = 33,331.42/x
  3. Step 3: Cross multiply
    57,223.18x = 78,960 × 33,331.42
  4. Step 4: Simplify right side
    57,223.18x = 2,631,848,923.20
  5. Step 5: Solve for x
    x = 2,631,848,923.20/57,223.18
  6. Step 6: Final answer
    x = 45,992.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.